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STI ATV Tires from Rocky Mountain ATV/MC

STI is dedicated to the design, development and manufacturing of high quality ATV and UTV tires. Their engineers are committed to developing tires that meet the highest standards and provide the greatest value to their customers. Rocky Mountain ATV/MC has many kinds of STI ATV tires, made for sand, snow, mud, tracks and trails. You can be sure any tire that Rocky Mountain ATV/MC sells is durable and built to last, but we also strive to provide incredible prices as well.

If you need two STI ATV tires, make sure you check out our ATV Tire and Wheel Builder Package which can save you up to 56%. Simply choose two tires and wheels using our filters search that will find the tires to fit your machine perfectly. Then our trained professionals will mount them for free and get them ready to be shipped along with the free valve stems you receive with your package. In addition, you also receive free ground shipping with any ATV Tire and Wheel Package.

Latest STI ATV Tires Reviews – You could win up to $500 for reviewing products!

  • STI Black Diamond XTR Radial ATV Tire

    STI Black Diamond XTR Radial ATV Tire

    Connor in Massachusetts

    Great Tires

    I've had these tires on my quad for two seasons now and I can't be more happy with them! They rip through mud, sand, rocks and tackle hill climbs like nobody's business. Highly recommend!

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  • STI Outback HT ATV Tire

    STI Outback HT ATV Tire

    Nathan in AL

    STI Outback Tires

    They pull great all around

    Read All Reviews
  • STI Roctane XD Radial ATV Tire

    STI Roctane XD Radial ATV Tire

    BOB in AZ

    STI ROCTANE RADIALS

    Leaked air from day one and wore very quickly.. Also had many punctures and leaked air even after I slimed all of them.. Very disappointed by them !

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  • STI Tech 4 MX ATV Tire

    STI Tech 4 MX ATV Tire

    Steven in FL

    Seem to be good

    Put them on a 98 Blaster seem to work great

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  • STI Black Diamond ATR Radial ATV Tire

    STI Black Diamond ATR Radial ATV Tire

    Lon in MI

    Good interaction - good product

    As usual, all questions answered and delivered as expected!

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  • STI Outback AT ATV Tire

    STI Outback AT ATV Tire

    Alec in ME

    Cheap set tires vs bear claws and rims

    So I basically got these rims to replace my old ones from my sportsman for being so cheap they really are nice steel rims gloss black and looks great with the tires I got for 410 bucks tires and rims can't beat that deal very happy with Rocky Mountain Atv will be buying more parts from these guys tires I got are the outback Sti great cheap mud tire vs the bear claw for 16 bucks more cant beat it spend the extra and get the good set tires but in time I will see if they hold up Tire size is Rear 25x10-12 Front 25x8-12 Tires have about A full quarter of tread with the mud nubs test was just a quarter inserted next to the tread wish I was able to upload photo they look great

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